User's Manual Part 1

GETTING STARTED 19
1
Power button
Using the Backlight
If you have difficulty seeing the information on your Smartphone,
you can use the backlight to illuminate your screen.
To activate the backlight:
Press the power button and hold it down for about two seconds.
Release the button when the backlight turns on.
To turn off the backlight:
Press and hold the power button for about two seconds. The
backlight also turns off automatically (after a period of inactivity)
with the Auto-off feature.